<template>
  <div class="login_container">
    <el-row>
      <el-col :span="12" :xs="0"></el-col>
      <el-col :span="12" :xs="24">
        <el-form class="login_form" :model="loginForm" :rules="rules" ref="loginForms">
          <h1>Hello</h1>
          <h2>欢迎来到硅谷甄选</h2>
          <el-form-item prop="username">
            <el-input :prefix-icon="User" v-model="loginForm.username"></el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input type="password" :prefix-icon="Lock" v-model="loginForm.password" show-password></el-input>
          </el-form-item>
          <el-form-item>
            <el-button :loading="loading" class="login_btn" type="primary" size="default" @click="login">登录</el-button>
          </el-form-item>
        </el-form>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
import { User, Lock } from '@element-plus/icons-vue'
import { reactive, ref } from 'vue'
import { useRouter, useRoute } from 'vue-router'
import userUserStore from '@/store/modules/user'
import { ElNotification } from 'element-plus'
import { getTime } from '@/utils/time'

let useStore = userUserStore()
let loginForms = ref()
let $router = useRouter()
let $route = useRoute()
let loading = ref(false)

let loginForm = reactive({ username: 'admin', password: '111111' })
const login = async () => {
  await loginForms.value.validate()
  try {
    loading.value = true
    await useStore.userLogin(loginForm)
    const redirect: any = $route.query.redirect
    $router.push({ path: redirect || '/' })
    ElNotification({
      type: 'success',
      message: '欢迎回来',
      title: `Hi, ${getTime()}好`,
    })

    loading.value = false
  } catch (error) {
    loading.value = false
    ElNotification({
      type: 'error',
      message: (error as Error).message,
    })
  }
}

const validateUsername = (value: any, callback: any) => {
  if (value.length >= 5) {
    callback()
  } else {
    callback(new Error('账号长度至少五位'))
  }
}

const validatorPassword = (value: any, callback: any) => {
  if (value.length >= 6) {
    callback()
  } else {
    callback(new Error('密码长度至少六位'))
  }
}

const rules = {
  username: [
    // { required: true, message: '用户名不能为空', trigger: 'blur' },
    // { required: true, min: 3, max: 10, message: '账号长度至少六位', trigger: 'change' }
    { trigger: 'change', validator: validateUsername },
  ],
  password: [
    // { required: true, min: 6, max: 15, message: '密码长度至少6位', trigger: 'change' },
    { trigger: 'change', validator: validatorPassword },
  ],
}
</script>

<style scoped>
.login_container {
  width: 100%;
  height: 100vh;
  background: url(@/assets/images/background.jpg) no-repeat;
  background-size: cover;

  .login_form {
    position: relative;
    width: 80%;
    top: 30vh;
    background: url(@/assets/images/login_form.png) no-repeat;
    background-size: cover;
    padding: 40px;

    h1 {
      color: white;
      font-size: 40px;
    }

    h2 {
      font-size: 20px;
      color: white;
      margin: 20px 0px;
    }

    .login_btn {
      width: 100%;
    }
  }
}
</style>
